Coarsening of nanoscale coherent precipitates in Ni-Al-Si alloys

G. Muralidharan*, Steve Weber, Michael Pollard, Haydn Chen

*Corresponding author for this work

Research output: Contribution to conferencePaper

Abstract

Coarsening rates of nanoscale coherent γ' precipitates in several alloys in the Ni-Al-Si system at 600°C have been measured using transmission electron microscopy and image analysis. It was observed that the coarsening of these spherical precipitates can be adequately described by the LSW theory. The effects of compositions of the precipitate and the matrix along with that of the interdiffusion coefficients on the coarsening rates were quantified using current theories of coarsening in multi-component systems. Comparison of calculations with experimental results reveals anomalous coarsening rates of the nanoscale precipitates.

Original languageEnglish
Pages779-784
Number of pages6
StatePublished - 1 Dec 2005
EventInternational Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005 - Phoenix, AZ, United States
Duration: 29 May 20053 Jun 2005

Conference

ConferenceInternational Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005
CountryUnited States
CityPhoenix, AZ
Period29/05/053/06/05

Keywords

  • Chemical effect
  • Electron microscopy
  • LSW theory

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    Muralidharan, G., Weber, S., Pollard, M., & Chen, H. (2005). Coarsening of nanoscale coherent precipitates in Ni-Al-Si alloys. 779-784. Paper presented at International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005, Phoenix, AZ, United States.